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JBender
06-20-2006, 07:54 PM
I have three different packages that have either arrived or are in the mail with much-needed parts for the Z. The break-down:

NissanParts.cc ~$190:

Throttle body gasket (x 2)
Oil filter tree gasket
Throw-out bearing
Pilot bushing
Steering joint
Clutch withdrawl pin
Brake booster hose


CarSteering.com $215 (+$100 core):

Remanufactured steering rack


Concept Z ~$600:

Energy Suspension Hyper-Flex Master Bushing kit (black)
Eibach Pro-Kit springs
300 Degree camber kit
Cargo cover hook (x 2)
New IAA connectors


I actually ordered the Concept Z parts a few weeks ago, but Coz had supplier problems with Energy Suspension, so those parts should be out in a few days.

Here's a picture of the contents of the NissanParts.cc box:

http://www.j-bender.com/z32/parts1.jpg

My reasons for replacing: the old brake booster hose was split on the ends. Steering joint was completely shot. Throttle bodies were sealed with liquid gasket instead of the paper gaskets. Old oil filter tree gasket was an oil leak suspect. The clutch parts are for the next time I go in there (forgot to order a rear main seal, oops).

The steering joint was the biggest purchase in this package, as my old one was toast after 199k miles and 17 years. Besides the normal movement on the axes, you could twist and move it any other way including horizontally along the bushings. This resulted in quite a bit of free play in the steering wheel. The installation wasn't difficult. Two 12mm bolts, and some prying to get the old one off. A comparison:

http://www.j-bender.com/z32/stjoint1.jpg

I also scraped off the liquid gasket and installed the new throttle body gaskets yesterday, which was a PITA with the plenum still on. I still have a slight vacuum leak from the bottom-left screw, most likely because I don't have the metal sheathe that goes in that screwhole. That part will be ordered shortly.

Replacing the oil filter tree gasket took a while but wasn't too tough. I cut the top off an empty milk jug (gallon) to catch the oil, because it is Mobil 1 with less than 400 miles on it (that would have been $24 down the drain otherwise). Then I removed the oil filter and sending unit, and pulled off the oil filter tree. The old gasket was caked on there quite a bit, and it took some time with a razor blade and some steel wool to bring the gasket surface back to a clean, even shine. Reinstallation was fairly simple, and I drove the car around for a few minutes. Still a few drops of oil underneath the car, so the main suspect is a faulty rear main seal (even though it was done over Spring Break).

Today, package 2 of 3 arrived. Physically, it's the biggest new part I've received, just beating the 1-piece driveshaft. The obligatory box shot:

http://www.j-bender.com/z32/strack1.jpg

And the beautiful 'new' rack inside:

http://www.j-bender.com/z32/strack2.jpg

http://www.j-bender.com/z32/strack3.jpg

I'll be installing the new rack once I receive the Concept Z parts, which include polyurethane steering rack bushings.

This is also a ZMods exclusive since I don't feel like cross-posting on 3ZC ;)

93daytona
06-21-2006, 12:10 AM
looking good! Sometime this fall my z will be getting a big overhaul

freakonaleash1187
06-21-2006, 01:21 AM
looks awesome, good to see maintenence being done. i wish i had the money to do that.

ZMANZ32TT
06-21-2006, 08:19 PM
congrats

JBender
06-22-2006, 08:43 PM
New front rotors and pads today, along with some paint for the calipers. They'll go on tomorrow, assuming no major complications.

http://www.j-bender.com/z32/brakes.jpg

Spyder Z 15
06-23-2006, 11:36 AM
Why didn't you get slotted or x-drilled rotors?

JBender
06-23-2006, 06:15 PM
Don't really have a need for them; I don't do any racing or auto-x, so it's just for normal street driving.

JBender
06-24-2006, 12:54 AM
I had the time this evening after work to do the front brake replacements, so here are some pictures along the way.

Untouched brake caliper:

http://www.j-bender.com/z32/caliper.jpg


I used a wire wheel to clean up the calipers, then sprayed them with 3-4 coats of black 1500-degree paint:

http://www.j-bender.com/z32/caliper1.jpg


I then sanded the Nissan letters smooth, and put a few layers of high-temperature gloss over everything:

http://www.j-bender.com/z32/caliper2.jpg


Here it is mounted with the new pads and rotors.

http://www.j-bender.com/z32/caliper3.jpg


Bedded the pads down, and no more extreme wheel shaking during braking. I'm going to see if my old rotors can be turned so I can have them as back-up sometime.

More updates as more parts come in!

canyoncarver
06-24-2006, 12:54 PM
I'm going to see if my old calipers can be turned so I can have them as back-up sometime.
Turning your old rotorz for back-ups is a good idea. Turning your calipers is not. :D

Spyder Z 15
06-24-2006, 04:42 PM
:lol:

JBender
06-24-2006, 05:30 PM
muahaha, it was a long day

JBender
06-28-2006, 07:41 PM
The engine is running almost 100% now. The problem was tracked down to bad O2 sensors (did not throw codes, acted normal in tests, but the hesitation is now gone) and more recently a PTU wire chopped by the power steering belt, killing the spark to cylinder 1. My idle isn't perfect at the moment because I have to replace the ECU coolant sensor and harness, but those parts are on their way.

The parts from Concept Z haven't shippped yet, so I've been occupying myself with other (inexpensive) things on the Z. Besides finally installing the battery tie-down I've had in my garage forever, I also moved the hatch latch down a little bit and killed the rattle. Also freshened up my rear calipers:

Before -
http://www.j-bender.com/z32/caliper4.jpg

After -
http://www.j-bender.com/z32/caliper5.jpg


I am also cleaning up and painting the rear rotors (already painted the front ones yesterday, and they came out well). In the mean time, I am trying my hand at refinishing the wheels, as the stock finish has been toast for a while:

http://www.j-bender.com/z32/wheel1.jpg

I'll be in Texas the next few days for college transfer orientation, so the work will resume once I get back.

JBender
06-28-2006, 10:22 PM
Not sure that many people hang out here at ZMods anymore, at least while 3ZC is up, but the wheel that I worked on tonight came out better than I would have expected. I'm not aiming to make the wheels perfect, just want them to look decent until I can afford to upgrade. I took a drill with a wire brush to the wheel for a while to remove what was left of the old finish, then I gave the wheel a couple coats of this wheel-finish paint I picked up. It turned out pretty good for $5 and some elbow grease:

http://www.j-bender.com/z32/wheel2.jpg

http://www.j-bender.com/z32/wheel3.jpg

and compared to the other rear wheel:

http://www.j-bender.com/z32/wheel4.jpg

canyoncarver
06-28-2006, 10:34 PM
Not sure that many people hang out here at ZMods anymore ......I check it out every day. It only takes 2 seconds. :D

That fixed up wheel looks really good. I think most of that crunge is a buildup of brake dust and road grime. Giving the newly painted wheels a good wipe down every time you wash the car will prevent the crunge from re-appearing. Take it from experience.

JBender
06-28-2006, 10:54 PM
I wish it was grime, but the majority of the ugliness is various layers of the worn finish. In the 'before' picture I posted above, the brown crap is brake dust, but if you look closely you can see the missing finish (all of the wheels are like this). I work at a car wash / detail shop, so believe me when I say I used every chemical we have to clean the wheels up before I decided on the refinishing :). After I come back on Monday and have time to do the same to the other wheels, they're going to be babied until I get new wheels someday, and then they will be retired to the garage :)

Twisted Six
06-29-2006, 12:51 AM
Wow John, VERY nice work so far!! Some day soon, your gold Z will be almost as sexy as the real Goldie!! :D

Keep it up, you're doing a super job!

Spyder Z 15
06-29-2006, 11:45 AM
What wheel finish paint did you get and where? Gotta pic of the can? BTW I heard wheel wax was a good product to protect from brake dust etc...

ZMANZ32TT
06-29-2006, 09:17 PM
looks great

Spyder Z 15
07-03-2006, 01:09 PM
Still waiting for that info dammit.

JBender
07-03-2006, 11:45 PM
lol sorry, I was sick for a few days after my return from Texas. I used a silver can of this stuff (http://www.duplicolor.com/products/wheel.html).

Assuming I'm all up to speed tomorrow, I'll refinish the other wheels and install the new ECU coolant sensor and harness.

Spyder Z 15
07-04-2006, 11:27 AM
lol sorry, I was sick for a few days after my return from Texas. I used a silver can of this stuff (http://www.duplicolor.com/products/wheel.html).

Assuming I'm all up to speed tomorrow, I'll refinish the other wheels and install the new ECU coolant sensor and harness.
Thank you soooooooooooooo much. That's the exact paint that my local auto parts store has and that I'm buying. Muchas Gracias.

JBender
07-14-2006, 09:49 PM
Since the last update, I replaced the ECU coolant sensor and harness, which unfortunately did not solve my problem. Looks like it's back to Ultimate Z in the near future for more troubleshooting.

Today, I got out of work early thanks to the weather, so I took the opportunity to finish up my other 3 wheels. I don't have any progress pictures, but here's a quick shot of the car with the 'fresh' wheels:

http://www.zmods.org/forums/vbgarage.php?do=getimage&id=181


I also picked up this black bushing kit from Ultimate Z when I was there a few days ago, because Coz has been out of stock for the past 3 weeks.

http://www.j-bender.com/z32/bushings.jpg


There's going to be a huge tech day(s) sometime in the next week or two. In one session, I'm going to be installing the steering rack, bushing kit, and springs. It should be a formidable challenge, as I've never done any work with springs or steering racks, and only limited work with the Z31's subframe bushings. From what I've heard, the bushing kit is a nightmare to install...I look forward to it :nod:

ZMANZ32TT
07-15-2006, 12:28 AM
get a good writeup

McLarenF1Kid
07-15-2006, 06:10 PM
Awesome work. A finely maintained Z.

JBender
07-30-2006, 08:01 PM
The steering rack, springs, camber kit, and bushing kit go in Tuesday / Wednesday.

In the mean time, I've been working on finishing off my audio system, and tracking down the engine troubles.

This came in the mail a few days ago:

http://www.j-bender.com/z32/audio1.jpg
JL Audio 500/1 amplifier

This will replace my Audiobahn amp, which had more bling that boom. I also removed the Blaupunkt 3-ways from the back, and installed them in the doors. I have a pair of Blaupunkt 2-ways (both pairs are 50W RMS) in the mail, and those will go in the back. All four speakers will be driven by the Alpine V12 amp (50W x 4 RMS) that was under the pass. seat when I bought the car.

The rear speaker removal:


http://www.j-bender.com/z32/audio2.jpg


The front 6.5" speaker mounts:

http://www.j-bender.com/z32/audio3.jpg


I also replaced a few connectors in the engine bay. First, the #4 injector connector, which took the brunt of the almost-engine fire caused by the fuel leak.


http://www.j-bender.com/z32/conn1.jpg


Then I replaced the AAC and FICD connectors, which were long gone, though not melted.

http://www.j-bender.com/z32/conn2.jpg


I may have fixed the engine problems, but I'm going to hold off on saying any more until I get a final verdict.

93daytona
07-31-2006, 08:00 AM
I love JL amps. Pricey for the power you get, but they're built like tanks, and are very versatile. Having a built in parametric eq is also pretty kick-ass

JBender
07-31-2006, 11:58 PM
Yeah, I figured if I was going to spend the money on a quality subwoofer (W7), I might as well have a top-shelf amp to pair with it.


Today I got off work early, so the suspension / differential / steering rack extravaganza has begun.

After removing the rear wheels, exhaust, and driveshaft, disconnecting the ABS sensor and parking brake cables, and removing the upper shock nuts, I had quite a problem breaking the lower shock bolts free. I dug around in my toolchest and this combination seemed to work quite nicely (the addition to the breaker bar is actually the top half of my floor jack handle):

http://www.j-bender.com/z32/rearsusp1.jpg


As I started to lower the crossmemeber, I realized that I did not have the jack centered under the weight of the differential / crossmember (a little too far back), so I had to supplement it with the tool kit jack. I lowered each jack a little bit at a time, and put wood blocks underneath the four corners once it reached the ground:

http://www.j-bender.com/z32/rearsusp2.jpg

http://www.j-bender.com/z32/rearsusp3.jpg


Here's a shot of the Tokico Illumina 5-ways (one of the few things the last guy had done right) with the stock springs:

http://www.j-bender.com/z32/rearsusp4.jpg


All this went on in our garage, which sat at 99.7 degrees for most of the afternoon, and tapered off into the low 90s into the evening, complete with Chicago humidity, blech. I soaked the control arm and differential bolts with PB Blaster, so that they are hopefully a little easier to tackle without breaking tomorrow.

Things to do tomorrow:

Rent spring compressor and install Eibachs in the rear
Tackle the bushings including in the ES master kit
Remove differential, take it apart, and bring it to buddy's shop to see what's up

I believe I need to replace the spring mounts, at least on one side, so hopefully Ultimate Z has a few in stock.

JBender
08-04-2006, 01:40 PM
I got hung up on the bushings install, so now I have to wait until I return from family vacation (today through Monday) to work on the car again. The only bushings that were really bad in the back were the rear differential bushings.

http://www.j-bender.com/z32/rearsusp5.jpg


Here's
a picture of my dirty differential (I cleaned off the sticker, don't ask me why):

http://www.j-bender.com/z32/rearsusp6.jpg


Wire-wheeling the sleeves that have to be kept:

http://www.j-bender.com/z32/rearsusp7.jpg

http://www.j-bender.com/z32/rearsusp8.jpg


Polyurethane differential bushings installed!

http://www.j-bender.com/z32/rearsusp9.jpg

http://www.j-bender.com/z32/rearsusp10.jpg


I took off the back cover of the differential and brought it to my friend's shop for him to have a look at it. Overall, the condition of the gears seemed to be very good, especially for 200k miles. With a mechanic's stethoscope, we determined that the front pinion bearings seemed to be louder than the carrier bearings, so that's probably the source of my whine at-speed. However, my friend did not want to take the differential apart because his shop didn't have the right tools or the know-how, and Ultimate Z wanted $300-400 just to take it apart and look at the bearings (not including replacement and reinstallation). I'm scraping off the old paper gasket and reinstalling the differential in the car for now. Judging by the very high cost of labor on the differential, I may just opt to purchase a sub-50k differential in the future.

http://www.j-bender.com/z32/rearsusp11.jpg


Does anyone have any suggestions for removing the outer sleeve of the subframe bushings? It's driving me crazy, I have to have spent at least 1 1/2 hours on this sleeve, and it's showing no signs of moving.

http://www.j-bender.com/z32/rearsusp12.jpg


I even broke a new chisel on it (granted, it was a cheap chisel):

http://www.j-bender.com/z32/rearsusp13.jpg


Any tips on the subframe sleeve would be appreciated :) I was going to cut it with a Sawzall until I read that the bottom flange that is part of the subframe can't be damaged. It's driving me insane.

canyoncarver
08-04-2006, 11:17 PM
Have you read Mike's (MGH) write-up on his suspension / subframe bushing replacement? He describes in detail what he went thru to get some of the liners out.

JBender
08-05-2006, 10:23 AM
I did, but of all the bushing removals he described, the subframe was the one he didn't say anything about :( I'll do some more poking around TT.net and 3ZC to see if I can come up with anything.

EDIT: Came across a few helpful posts on TT.net. Namely, the fact that you can cut the flange on the bottom without worrying about damaging the subframe or mount for the new bushing. When I get back, it should be a much simpler procedure :) I'll update on Tuesday when I get the time to tackle the rest of the bushings with this 'new' procedure.

JBender
08-09-2006, 01:22 AM
Back home, I tackled the subframe bushings today with 100% success. All it took was a Sawzall to cut the sleeve, and the rest was a piece of cake. Each bushing (from core removal to outer sleeve removal) probably took me 20 minutes or less after I mastered the technique.

I also removed the remnants of the paper gasket on the back of the differential, and sealed it back together. I installed the differential with the polyurethane bushings, and torqued the rest of the bolts I had removed during the process accordingly. Tomorrow is simply reassembly, along with fabricating MDF mounts in the rear for the speakers that arrived while I was on vacation. My sub box from Chris is set to arrive via UPS on the 11th, so once I have that put together, I'm taking the Z in to have the audio professionally tuned (between the sub amp, speaker amp, and headunit).

It couldn't be a progress post without a picture, so here's the subframe back together, its last night on the garage floor:

http://www.j-bender.com/z32/rearsusp14.jpg

JBender
08-19-2006, 01:09 AM
Lots of work but little to show for it since the last post. I installed, uninstalled, and reinstalled the subframe because the rear subframe bushings were compressing suspiciously. I made several forum posts, sent quite a few e-mails, and made several rounds of phone calls before being told by an Energy Suspension rep. that it was okay and wouldn't hurt anything. I'm still not 100% sold on that, but I don't really have a choice right now.

After I installed the subframe and torqued everything down, the first drive revealed a very loud noise coming from the differential area. More troubleshooting, e-mails, calls, and the general concensus is that either I aggravated the already-bad pinion bearings by dropping the subframe, or the subframe angle changed enough as a result of the new bushings to aggravate the bearings. Either way, there was not enough time to replace the bad bearings, so I am going to hope for the best and take it on the drive.

Tomorrow and Sunday I will be driving to Oklahoma, then Texas to college at Texas Tech (me in the Z, them in the Honda Pilot with a U-Haul 5' x 8'). It's a 1,200 mile trip...wish me luck. Once it's down there, I'll have all my tools at my apartment, so anything can be fixed, but getting there's the trick.

Unfortunately, I also don't have my sub box ready for the trip, because it was made to the old JL opening size of 9 1/4" instead of the newer 8 3/4". Once I get settled in, I'll have to make a 1/2" 'sleeve' that fits in the hole and provides the right mounting size to install my W7.

What's that? All negative, nothing good from the past few weeks despite plenty of work and money on parts? Well, during the (very loud thanks to the bad bearings) drive to fill up tonight, this happened:

http://www.j-bender.com/z32/200k.jpg

One of these days, I will be able to start the Z up and drive it around, and not hear any strange noises, feel any engine vibrations, smell any burnt oil, and just be able to enjoy the drive. Sometimes it is the only light at the end of a seemingly endless tunnel.

canyoncarver
08-19-2006, 10:50 AM
Good luck on your trip to Tx. Hopefully you'll have some Z member phone numbers in case your rear end gives you any problems along the way. :cool:

JBender
08-20-2006, 11:47 AM
So far, so good. I'm in Tulsa right now, and the Z made the first leg of the journey without a hitch. There's a bad noise coming from my right-rear wheel occasionally. Best case scenario, the dust shield is a little bent and scraping, worst case I need a new wheel bearing. The differential bearing whine seems to be the loudest (read: deafening) at 55-65 MPH, but cruising at 80 isn't nearly as bad.

I've got another 600 or so miles to drive today, then I can rest easy and work on fixing her up at my new place :).

JBender
08-24-2006, 07:53 PM
I've finally unpacked everything and set up the internet here in Lubbock, TX. The Z did make the trip in one piece, although I'm not sure my hearing fully recovered for a few days ;).

I've done a lot of searching and sent out a handful of e-mails, and it seems that it would cost me upwards of $550 to have the front bearings replaced. The FSM outlines the differential service procedure, and it's very far over my head, especially considering the specialized tools required. This leaves me with the only option of replacing the entire differential assembly.

Between school starting, finding a job, and finishing off the apartment furnishings, I don't have the cash to replace the differential at the moment. I figure I'll start looking for a job about a week after school gets underway, and after that a quick differential swap will be at the top of the list. I still have the steering rack, front suspension bushings, and front springs in my closet. Unfortunately, the apartment parking lot policy is very strict, so I can't do any work here. I'm in contact with a few different Z'ers in the area, so I'll be able to install those parts once I find a place to do it.

Here's a few low-quality apartment pictures (1 bedroom, 1 1/2 bath, loft). I bought all the furniture in the past few weeks except for my bedroom, so it's very nice and clean so far :)

http://www.zmods.org/forums/attachment.php?attachmentid=114&stc=1

http://www.zmods.org/forums/attachment.php?attachmentid=115&stc=1

http://www.zmods.org/forums/attachment.php?attachmentid=116&stc=1

canyoncarver
08-24-2006, 10:28 PM
How 80's.... :D ..... Looks like a soon-to-be party place. You can deny it now, but it'll happen.

Considering the cost of rebuild. How much will a used diff cost? How much are the bearings and seals for the rebuild? You seem mechanically inclined enough to figure it out if you choose to. You can buy a dial indicator set-up for relatively cheap. Plus, it's another tool you'll always have. They work well for finding true TDC during a rebuild and dialing in your cam timing when you go to the JWT cams with adjustable gears. :cool:

kerpal
09-01-2007, 05:13 AM
Back home, I tackled the subframe bushings today with 100% success. All it took was a Sawzall to cut the sleeve, and the rest was a piece of cake. Each bushing (from core removal to outer sleeve removal) probably took me 20 minutes or less after I mastered the technique.

I also removed the remnants of the paper gasket on the back of the differential, and sealed it back together. I installed the differential with the polyurethane bushings, and torqued the rest of the bolts I had removed during the process accordingly. Tomorrow is simply reassembly, along with fabricating MDF mounts in the rear for the speakers that arrived while I was on vacation. My sub box from Chris is set to arrive via UPS on the 11th, so once I have that put together, I'm taking the Z in to have the audio professionally tuned (between the sub amp, speaker amp, and headunit).

It couldn't be a progress post without a picture, so here's the subframe back together, its last night on the garage floor:

http://www.j-bender.com/z32/rearsusp14.jpg

What??? Too expensive men

drewtiss
03-13-2009, 03:27 AM
Lots of work but little to show for it since the last post. I installed, uninstalled, and reinstalled the subframe because the rear subframe bushings were compressing suspiciously. I made several forum posts, sent quite a few e-mails, and made several rounds of phone calls before being told by an Energy Suspension rep. that it was okay and wouldn't hurt anything. I'm still not 100% sold on that, but I don't really have a choice right now.

After I installed the subframe and torqued everything down, the first drive revealed a very loud noise coming from the differential area. More troubleshooting, e-mails, calls, and the general concensus is that either I aggravated the already-bad pinion bearings by dropping the subframe, or the subframe angle changed enough as a result of the new bushings to aggravate the bearings. Either way, there was not enough time to replace the bad bearings, so I am going to hope for the best and take it on the drive.

Tomorrow and Sunday I will be driving to Oklahoma, then Texas to college at Texas Tech (me in the Z, them in the Honda Pilot with a U-Haul 5' x 8'). It's a 1,200 mile trip...wish me luck. Once it's down there, I'll have all my tools at my apartment, so anything can be fixed, but getting there's the trick.

Unfortunately, I also don't have my sub box ready for the trip, because it was made to the old JL opening size of 9 1/4" instead of the newer 8 3/4". Once I get settled in, I'll have to make a 1/2" 'sleeve' that fits in the hole and provides the right mounting size to install my W7.

What's that? All negative, nothing good from the past few weeks despite plenty of work and money on mercedes parts (http://www.mbpartswarehouse.com)? Well, during the (very loud thanks to the bad bearings) drive to fill up tonight, this happened:

http://www.j-bender.com/z32/200k.jpg

One of these days, I will be able to start the Z up and drive it around, and not hear any strange noises, feel any engine vibrations, smell any burnt oil, and just be able to enjoy the drive. Sometimes it is the only light at the end of a seemingly endless tunnel.


How is your Z doing right now? Does the annoying sound keeps on creeking? I hope that everything's fine now.